The ART.ENGINE is not just a speaker, but 16 speakers in a somewhat standalone audio system. The Engine can accept either RCA inputs for various audio source connectivity, or streaming WiFi signals from computers.
Costing $20,000, Ferrari says, "It's a statement." And I think that statement is something like, "My nether regions are so tiny that even my Ferrari couldn't offer me a value of self-worth, so I'm gonna give their speakers a shot." That being said, I would take one had I the net worth.